Tumbledown shack (5)
I believe the answer is:
hovel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tumbledown shack</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hovel that I've seen before include "Ramshackle dwelling" , "A wretched little dwelling" , "Shanty; hut" , "Grubby tumbledown dwelling" , "Squalid dwelling" .)